In this chapter, we were talking about reactive programming in Perl 6. This paradigm has support in the language core, so no external modules are needed to start programming. The supply is the main character in this chapter—we covered two different types of them, on demand and live supplies. We had many examples of attaching taps to supplies and saw how the data flow is organized and how it can be filtered.
This was the last chapter of the book. In 15 chapters, we went from the very basics of Perl 6 through an object-oriented approach and concurrent programming to higher order features such as functional and reactive programming. Perl 6 naturally embeds all of that. There is no doubt that more than 15 years of development added value to the quality and maturity of the language in general.
During the process of writing this book, which took about half a year...